Re: I need DPDK MLX5 Probe error support

[Thomas Monjalon <thomas@monjalon.net>]

I don't even know which Linux distribution you are using.
Please send the Dockerfile.
If it compiles in Docker, it should run.


06/10/2021 14:27, Jaeeun Ham:
> Hi Thomas,
> 
> The cause is that I fail to load mlx5 driver using pci address on the docker container.
> So, I tried to add rdma-core library to solve dependency issue you mentioned as below.
> Docker image is built with these Dockerfiles.
> This docker image is built with DPDK20.11.
> How should I add rdma-core library?
> 
> I don't find any rdma related so files in the docker container.
> b273016e5be8:/usr/local/lib # ls *mlx*
> librte_common_mlx5.so  librte_common_mlx5.so.21  librte_common_mlx5.so.21.0  librte_net_mlx5.so  librte_net_mlx5.so.21  librte_net_mlx5.so.21.0
> b273016e5be8:/usr/local/lib # ls *rdma*
> ls: cannot access '*rdma*': No such file or directory
> 
> dpdk-20.11/doc/guides/rel_notes/release_20_11.rst
> 911:  * rdma-core:
> 913:    * rdma-core-31.0-1 and above
> 
> 
> 
> < error log >
> f1d23550a947:/ # cat /tmp/logs/epp.log
> MIDHAUL_PCI_ADDR:0000:12:01.0, BACKHAUL_PCI_ADDR:0000:12:01.1 MIDHAUL_IP_ADDR:10.255.20.125, BACKHAUL_IP_ADDR:10.255.20.124
> mlx5_pci: unable to recognize master/representors on the multiple IB devices
> common_mlx5: Failed to load driver = mlx5_pci.
> 
> EAL: Requested device 0000:12:01.0 cannot be used
> mlx5_pci: unable to recognize master/representors on the multiple IB devices
> common_mlx5: Failed to load driver = mlx5_pci.
> 
> EAL: Requested device 0000:12:01.1 cannot be used
> EAL: Bus (pci) probe failed.
> FATAL: epp_init.c::copy_mac_addr:130: Call to rte_eth_dev_get_port_by_name(src_dpdk_dev_name, &port_id) failed: -19 (Unknown error -19), rte_errno=0 (not set)
> 
> Caught signal 6
> Obtained 7 stack frames, tid=1377.
> tid=1377, /usr/local/bin/ericsson-packet-processor() [0x40a3c4] tid=1377, /lib64/libpthread.so.0(+0x13f80) [0x7f56c4786f80] tid=1377, /lib64/libc.so.6(gsignal+0x10b) [0x7f56c229018b] tid=1377, /lib64/libc.so.6(abort+0x175) [0x7f56c2291585] tid=1377, /usr/local/bin/ericsson-packet-processor(main+0x458) [0x406818] tid=1377, /lib64/libc.so.6(__libc_start_main+0xed) [0x7f56c227b34d] tid=1377, /usr/local/bin/ericsson-packet-processor(_start+0x2a) [0x4090ea]
> 
> 
> 
> BR/Jaeeun
> 
> -----Original Message-----
> From: Thomas Monjalon <thomas@monjalon.net>
> Sent: Wednesday, October 6, 2021 7:59 PM
> To: Jaeeun Ham <jaeeun.ham@ericsson.com>
> Cc: users@dpdk.org; alialnu@nvidia.com; rasland@nvidia.com; asafp@nvidia.com
> Subject: Re: I need DPDK MLX5 Probe error support
> 
> Installing dependencies is not an issue.
> I don't understand which support you need.
> 
> 
> 06/10/2021 11:57, Jaeeun Ham:
> > Hi Thomas,
> >
> > Could you take a look at the attached file?
> > My engineer managed to compile DPDK 20.11 to support MLX5. Please find the output from dpdk-testpmd command in attached file. As you can see testpmd was able to probe mlx5_pci drivers and get MAC addresses.
> > The key issue in his case for enabling MLX5 support was to export rdma-core lib path to shared libs for meson/ninja commands as new build system automatically enables MLX5 support if needed dependencies are available.
> >
> > BR/Jaeeun
> >
> > -----Original Message-----
> > From: Thomas Monjalon <thomas@monjalon.net<mailto:thomas@monjalon.net>>
> > Sent: Sunday, October 3, 2021 4:51 PM
> > To: Jaeeun Ham <jaeeun.ham@ericsson.com<mailto:jaeeun.ham@ericsson.com>>
> > Cc: users@dpdk.org<mailto:users@dpdk.org>; alialnu@nvidia.com<mailto:alialnu@nvidia.com>; rasland@nvidia.com<mailto:rasland@nvidia.com>;
> > asafp@nvidia.com<mailto:asafp@nvidia.com>
> > Subject: Re: I need DPDK MLX5 Probe error support
> >
> > Hi,
> >
> > I think you need to read the documentation.
> > For DPDK install on Linux:
> > https://protect2.fireeye.com/v1/url?k=7925aba3-26be92c2-7925eb38-86d8a
> > 30ca42b-d871f122b4a0a61a&q=1&e=88eca0f4-aa71-4ba8-a332-179f08406da3&u=
> > https%3A%2F%2Fdoc.dpdk.org%2Fguides%2Flinux_gsg%2Fbuild_dpdk.html%23co
> > mpiling-and-installing-dpdk-system-wide
> > For mlx5 specific dependencies, install rdma-core package:
> > https://protect2.fireeye.com/v1/url?k=9bce4984-c45570e5-9bce091f-86d8a
> > 30ca42b-25bd3d467b5f290d&q=1&e=88eca0f4-aa71-4ba8-a332-179f08406da3&u=
> > https%3A%2F%2Fdoc.dpdk.org%2Fguides%2Fnics%2Fmlx5.html%23linux-prerequ
> > isites
> >
> >
> > 02/10/2021 12:57, Jaeeun Ham:
> > > Hi,
> > >
> > > Could you teach me how to install dpdk-testpmd?
> > > I have to run the application on the host server, not a development server.
> > > So, I don't know how to get dpdk-testpmd.
> > >
> > > By the way, testpmd run result is as below.
> > > root@seroics05590:~/ejaeham# testpmd
> > > EAL: Detected 64 lcore(s)
> > > EAL: libmlx4.so.1: cannot open shared object file: No such file or
> > > directory
> > > EAL: FATAL: Cannot init plugins
> > >
> > > EAL: Cannot init plugins
> > >
> > > PANIC in main():
> > > Cannot init EAL
> > > 5: [testpmd(_start+0x2a) [0x55d301d98e1a]]
> > > 4: [/lib/x86_64-linux-gnu/libc.so.6(__libc_start_main+0xe7)
> > > [0x7f5e044a4bf7]]
> > > 3: [testpmd(main+0x907) [0x55d301d98d07]]
> > > 2: [/usr/lib/x86_64-linux-gnu/librte_eal.so.17.11(__rte_panic+0xbd)
> > > [0x7f5e04ca3cfd]]
> > > 1:
> > > [/usr/lib/x86_64-linux-gnu/librte_eal.so.17.11(rte_dump_stack+0x2e)
> > > [0x7f5e04cac19e]] Aborted
> > >
> > >
> > > I added option below when the process is starting in the docker.
> > >  dv_flow_en=0 \
> > >  --log-level=pmd,8 \
> > > < MLX5 log >
> > > 415a695ba348:/tmp/logs # cat epp.log MIDHAUL_PCI_ADDR:0000:12:01.0,
> > > BACKHAUL_PCI_ADDR:0000:12:01.1 MIDHAUL_IP_ADDR:10.255.21.177,
> > > BACKHAUL_IP_ADDR:10.255.21.178
> > > mlx5_pci: unable to recognize master/representors on the multiple IB
> > > devices
> > > common_mlx5: Failed to load driver = mlx5_pci.
> > >
> > > EAL: Requested device 0000:12:01.0 cannot be used
> > > mlx5_pci: unable to recognize master/representors on the multiple IB
> > > devices
> > > common_mlx5: Failed to load driver = mlx5_pci.
> > >
> > > EAL: Requested device 0000:12:01.1 cannot be used
> > > EAL: Bus (pci) probe failed.
> > > EAL: Trying to obtain current memory policy.
> > > EAL: Setting policy MPOL_PREFERRED for socket 1 Caught signal 15
> > > EAL: Restoring previous memory policy: 0
> > > EAL: Calling mem event callback 'MLX5_MEM_EVENT_CB:(nil)'
> > > EAL: request: mp_malloc_sync
> > > EAL: Heap on socket 1 was expanded by 5120MB
> > > FATAL: epp_init.c::copy_mac_addr:130: Call to
> > > rte_eth_dev_get_port_by_name(src_dpdk_dev_name, &port_id) failed:
> > > -19 (Unknown error -19), rte_errno=0 (not set)
> > >
> > > Caught signal 6
> > > Obtained 7 stack frames, tid=713.
> > > tid=713, /usr/local/bin/ericsson-packet-processor() [0x40a4a4]
> > > tid=713, /lib64/libpthread.so.0(+0x13f80) [0x7f7e1eae8f80] tid=713,
> > > /lib64/libc.so.6(gsignal+0x10b) [0x7f7e1c5f818b] tid=713,
> > > /lib64/libc.so.6(abort+0x175) [0x7f7e1c5f9585] tid=713,
> > > /usr/local/bin/ericsson-packet-processor(main+0x458) [0x406818]
> > > tid=713, /lib64/libc.so.6(__libc_start_main+0xed) [0x7f7e1c5e334d]
> > > tid=713, /usr/local/bin/ericsson-packet-processor(_start+0x2a)
> > > [0x4091ca]
> > >
> > > < i40e log >
> > > cat epp.log
> > > MIDHAUL_PCI_ADDR:0000:3b:0d.5, BACKHAUL_PCI_ADDR:0000:3b:0d.4
> > > MIDHAUL_IP_ADDR:10.51.21.112, BACKHAUL_IP_ADDR:10.51.21.113
> > > EAL: Trying to obtain current memory policy.
> > > EAL: Setting policy MPOL_PREFERRED for socket 1
> > > EAL: Restoring previous memory policy: 0
> > > EAL: Calling mem event callback 'vfio_mem_event_clb:(nil)'
> > > EAL: request: mp_malloc_sync
> > > EAL: Heap on socket 1 was expanded by 5120MB
> > > i40evf_dev_alarm_handler(): ICR01_ADMINQ is reported
> > > i40evf_handle_aq_msg(): adminq response is received, opcode = 28
> > > i40e_dev_rx_queue_setup(): Rx Burst Bulk Alloc Preconditions are satisfied. Rx Burst Bulk Alloc function will be used on port=0, queue=0.
> > > i40e_set_tx_function_flag(): Neither simple nor vector Tx enabled on
> > > Tx queue 0
> > >
> > > i40evf_dev_start(): >>
> > > i40evf_config_rss(): No hash flag is set
> > > i40e_set_rx_function(): Vector Rx path will be used on port=0.
> > > i40e_set_tx_function(): Xmit tx finally be used.
> > > i40evf_dev_alarm_handler(): ICR01_ADMINQ is reported
> > > i40evf_handle_aq_msg(): adminq response is received, opcode = 6
> > > i40evf_dev_alarm_handler(): ICR01_ADMINQ is reported
> > > i40evf_handle_aq_msg(): adminq response is received, opcode = 7
> > > i40evf_add_del_all_mac_addr(): add/rm mac:62:64:21:84:83:b0
> > > i40evf_dev_alarm_handler(): ICR01_ADMINQ is reported
> > > i40evf_handle_aq_msg(): adminq response is received, opcode = 10
> > > i40evf_dev_rx_queue_start(): >>
> > > i40evf_dev_alarm_handler(): ICR01_ADMINQ is reported
> > > i40evf_handle_aq_msg(): adminq response is received, opcode = 8
> > > i40evf_handle_pf_event(): VIRTCHNL_EVENT_LINK_CHANGE event
> > > i40evf_dev_tx_queue_start(): >>
> > > i40evf_dev_alarm_handler(): ICR01_ADMINQ is reported
> > > i40evf_handle_aq_msg(): adminq response is received, opcode = 8
> > > i40evf_handle_pf_event(): VIRTCHNL_EVENT_LINK_CHANGE event
> > > i40evf_dev_alarm_handler(): ICR01_ADMINQ is reported
> > > i40evf_handle_aq_msg(): adminq response is received, opcode = 14
> > > i40evf_dev_alarm_handler(): ICR01_ADMINQ is reported
> > > i40evf_handle_aq_msg(): adminq response is received, opcode = 14
> > > i40evf_dev_alarm_handler(): ICR01_ADMINQ is reported
> > > i40evf_handle_aq_msg(): adminq response is received, opcode = 14
> > > i40evf_dev_alarm_handler(): ICR01_ADMINQ is reported
> > > i40evf_handle_aq_msg(): adminq response is received, opcode = 28
> > > i40e_dev_rx_queue_setup(): Rx Burst Bulk Alloc Preconditions are satisfied. Rx Burst Bulk Alloc function will be used on port=1, queue=0.
> > > i40e_set_tx_function_flag(): Neither simple nor vector Tx enabled on
> > > Tx queue 0
> > >
> > > i40evf_dev_start(): >>
> > > i40evf_config_rss(): No hash flag is set
> > > i40e_set_rx_function(): Vector Rx path will be used on port=1.
> > > i40e_set_tx_function(): Xmit tx finally be used.
> > > i40evf_dev_alarm_handler(): ICR01_ADMINQ is reported
> > > i40evf_handle_aq_msg(): adminq response is received, opcode = 6
> > > i40evf_dev_alarm_handler(): ICR01_ADMINQ is reported
> > > i40evf_handle_aq_msg(): adminq response is received, opcode = 7
> > > i40evf_add_del_all_mac_addr(): add/rm mac:c2:88:5c:a9:a2:ef
> > > i40evf_dev_alarm_handler(): ICR01_ADMINQ is reported
> > > i40evf_handle_aq_msg(): adminq response is received, opcode = 10
> > > i40evf_dev_rx_queue_start(): >>
> > > i40evf_dev_alarm_handler(): ICR01_ADMINQ is reported
> > > i40evf_handle_aq_msg(): adminq response is received, opcode = 8
> > > i40evf_handle_pf_event(): VIRTCHNL_EVENT_LINK_CHANGE event
> > > i40evf_dev_tx_queue_start(): >>
> > > i40evf_dev_alarm_handler(): ICR01_ADMINQ is reported
> > > i40evf_handle_aq_msg(): adminq response is received, opcode = 8
> > > i40evf_handle_pf_event(): VIRTCHNL_EVENT_LINK_CHANGE event
> > > i40evf_dev_alarm_handler(): ICR01_ADMINQ is reported
> > > i40evf_handle_aq_msg(): adminq response is received, opcode = 14
> > > i40evf_dev_alarm_handler(): ICR01_ADMINQ is reported
> > > i40evf_handle_aq_msg(): adminq response is received, opcode = 14
> > > i40evf_dev_alarm_handler(): ICR01_ADMINQ is reported
> > > i40evf_handle_aq_msg(): adminq response is received, opcode = 14
> > > USER1: rte_ip_frag_table_create: allocated of 12583040 bytes at
> > > socket
> > > -1
> > > USER1: rte_ip_frag_table_create: allocated of 12583040 bytes at
> > > socket
> > > -1
> > > USER1: rte_ip_frag_table_create: allocated of 12583040 bytes at
> > > socket
> > > -1
> > > USER1: rte_ip_frag_table_create: allocated of 12583040 bytes at
> > > socket
> > > -1
> > > USER1: rte_ip_frag_table_create: allocated of 12583040 bytes at
> > > socket
> > > -1
> > > USER1: rte_ip_frag_table_create: allocated of 12583040 bytes at
> > > socket
> > > -1
> > > USER1: rte_ip_frag_table_create: allocated of 12583040 bytes at
> > > socket
> > > -1
> > > USER1: rte_ip_frag_table_create: allocated of 12583040 bytes at
> > > socket
> > > -1
> > > USER1: rte_ip_frag_table_create: allocated of 12583040 bytes at
> > > socket
> > > -1
> > > USER1: rte_ip_frag_table_create: allocated of 12583040 bytes at
> > > socket
> > > -1
> > > USER1: rte_ip_frag_table_create: allocated of 12583040 bytes at
> > > socket
> > > -1
> > > USER1: rte_ip_frag_table_create: allocated of 12583040 bytes at
> > > socket
> > > -1
> > > USER1: rte_ip_frag_table_create: allocated of 12583040 bytes at
> > > socket
> > > -1
> > > USER1: rte_ip_frag_table_create: allocated of 12583040 bytes at
> > > socket
> > > -1
> > > USER1: rte_ip_frag_table_create: allocated of 12583040 bytes at
> > > socket
> > > -1
> > > USER1: rte_ip_frag_table_create: allocated of 12583040 bytes at
> > > socket
> > > -1
> > > USER1: rte_ip_frag_table_create: allocated of 12583040 bytes at
> > > socket
> > > -1
> > > USER1: rte_ip_frag_table_create: allocated of 12583040 bytes at
> > > socket
> > > -1
> > > USER1: rte_ip_frag_table_create: allocated of 12583040 bytes at
> > > socket
> > > -1
> > > USER1: rte_ip_frag_table_create: allocated of 12583040 bytes at
> > > socket
> > > -1
> > > USER1: rte_ip_frag_table_create: allocated of 12583040 bytes at
> > > socket
> > > -1
> > > USER1: rte_ip_frag_table_create: allocated of 12583040 bytes at
> > > socket
> > > -1
> > > USER1: rte_ip_frag_table_create: allocated of 12583040 bytes at
> > > socket
> > > -1
> > > USER1: rte_ip_frag_table_create: allocated of 12583040 bytes at
> > > socket
> > > -1
> > > USER1: rte_ip_frag_table_create: allocated of 12583040 bytes at
> > > socket
> > > -1
> > > USER1: rte_ip_frag_table_create: allocated of 12583040 bytes at
> > > socket
> > > -1
> > > USER1: rte_ip_frag_table_create: allocated of 12583040 bytes at
> > > socket
> > > -1
> > > USER1: rte_ip_frag_table_create: allocated of 12583040 bytes at
> > > socket
> > > -1
> > > USER1: rte_ip_frag_table_create: allocated of 12583040 bytes at
> > > socket
> > > -1
> > > USER1: rte_ip_frag_table_create: allocated of 12583040 bytes at
> > > socket
> > > -1
> > > USER1: rte_ip_frag_table_create: allocated of 12583040 bytes at
> > > socket
> > > -1
> > > USER1: rte_ip_frag_table_create: allocated of 12583040 bytes at
> > > socket
> > > -1
> > > i40evf_dev_mtu_set(): port 1 must be stopped before configuration
> > > i40evf_dev_mtu_set(): port 0 must be stopped before configuration
> > > Caught signal 10
> > > i40evf_dev_alarm_handler(): ICR01_ADMINQ is reported
> > > i40evf_handle_aq_msg(): adminq response is received, opcode = 15
> > > i40evf_dev_alarm_handler(): ICR01_ADMINQ is reported
> > > i40evf_handle_aq_msg(): adminq response is received, opcode = 15
> > > i40evf_dev_alarm_handler(): ICR01_ADMINQ is reported
> > > i40evf_handle_aq_msg(): adminq response is received, opcode = 15
> > > i40evf_dev_alarm_handler(): ICR01_ADMINQ is reported
> > > i40evf_handle_aq_msg(): adminq response is received, opcode = 15
> > > i40evf_dev_alarm_handler(): ICR01_ADMINQ is reported
> > > i40evf_handle_aq_msg(): adminq response is received, opcode = 15
> > > i40evf_dev_alarm_handler(): ICR01_ADMINQ is reported
> > > i40evf_handle_aq_msg(): adminq response is received, opcode = 15
> > > Caught signal 10
> > > i40evf_dev_alarm_handler(): ICR01_ADMINQ is reported
> > > i40evf_handle_aq_msg(): adminq response is received, opcode = 15
> > > i40evf_dev_alarm_handler(): ICR01_ADMINQ is reported
> > > i40evf_handle_aq_msg(): adminq response is received, opcode = 15
> > > i40evf_dev_alarm_handler(): ICR01_ADMINQ is reported
> > > i40evf_handle_aq_msg(): adminq response is received, opcode = 15
> > > i40evf_dev_alarm_handler(): ICR01_ADMINQ is reported
> > > i40evf_handle_aq_msg(): adminq response is received, opcode = 15
> > > i40evf_dev_alarm_handler(): ICR01_ADMINQ is reported
> > > i40evf_handle_aq_msg(): adminq response is received, opcode = 15
> > > i40evf_dev_alarm_handler(): ICR01_ADMINQ is reported
> > > i40evf_handle_aq_msg(): adminq response is received, opcode = 15
> > >
> > >
> > > process start option which is triggered by shell script is as below.
> > >
> > > < start-epp.sh >
> > > exec /usr/local/bin/ericsson-packet-processor \
> > >   $(get_dpdk_core_list_parameter) \
> > >   $(get_dpdk_mem_parameter) \
> > >   $(get_dpdk_hugepage_parameters) \
> > >  -d /usr/local/lib/librte_mempool_ring.so \  -d
> > > /usr/local/lib/librte_mempool_stack.so \  -d
> > > /usr/local/lib/librte_net_pcap.so \  -d
> > > /usr/local/lib/librte_net_i40e.so \  -d
> > > /usr/local/lib/librte_net_mlx5.so \  -d
> > > /usr/local/lib/librte_event_dsw.so \  $DPDK_PCI_OPTIONS \
> > >  --vdev=event_dsw0 \
> > >  --vdev=eth_pcap0,iface=midhaul_edk \
> > > --vdev=eth_pcap1,iface=backhaul_edk \  --file-prefix=container \
> > > --log-level lib.eal:debug \
> > >  dv_flow_en=0 \
> > >  --log-level=pmd,8 \
> > >  -- \
> > >   $(get_epp_mempool_parameter) \
> > >
> > > "--neighbor-discovery-interface=midhaul_ker,${MIDHAUL_IP_ADDR},mac_addr_dev=${MIDHAUL_MAC_ADDR_DEV},vr_id=0" \  "--neighbor-discovery-interface=backhaul_ker,${BACKHAUL_IP_ADDR},mac_addr_dev=${BACKHAUL_MAC_ADDR_DEV},vr_id=1"
> > >
> > > BR/Jaeeun
> > >
> > > -----Original Message-----
> > > From: Thomas Monjalon <thomas@monjalon.net<mailto:thomas@monjalon.net>>
> > > Sent: Wednesday, September 29, 2021 8:16 PM
> > > To: Jaeeun Ham <jaeeun.ham@ericsson.com<mailto:jaeeun.ham@ericsson.com>>
> > > Cc: users@dpdk.org<mailto:users@dpdk.org>; alialnu@nvidia.com<mailto:alialnu@nvidia.com>; rasland@nvidia.com<mailto:rasland@nvidia.com>;
> > > asafp@nvidia.com<mailto:asafp@nvidia.com>
> > > Subject: Re: I need DPDK MLX5 Probe error support
> > >
> > > 27/09/2021 02:18, Jaeeun Ham:
> > > > Hi,
> > > >
> > > > I hope you are well.
> > > > My name is Jaeeun Ham and I have been working for the Ericsson.
> > > >
> > > > I am suffering from enabling MLX5 NIC, so could you take a look at how to run it?
> > > > There are two pci address for the SRIOV(vfio) mlx5 nic support but
> > > > it doesn't run correctly. (12:01.0, 12:01.1)
> > > >
> > > > I started one process which is running inside the docker process that is on the MLX5 NIC support host server.
> > > > The process started to run with following option.
> > > >     -d /usr/local/lib/librte_net_mlx5.so And the docker process
> > > > has
> > > > mlx5 libraries as below.
> > >
> > > Did you try on the host outside of any container?
> > >
> > > Please could you try following commands (variables to be replaced)?
> > >
> > >     dpdk-hugepages.py --reserve 1G
> > >     ip link set $netdev netns $container
> > >     docker run --cap-add SYS_NICE --cap-add IPC_LOCK --cap-add NET_ADMIN \
> > >                --device /dev/infiniband/ $image
> > >     echo show port summary all | dpdk-testpmd --in-memory -- -i
> > >
> > >
> > >
> > > > 706a37a35d29:/usr/local/lib # ls -1 | grep mlx
> > > > librte_common_mlx5.so
> > > > librte_common_mlx5.so.21
> > > > librte_common_mlx5.so.21.0
> > > > librte_net_mlx5.so
> > > > librte_net_mlx5.so.21
> > > > librte_net_mlx5.so.21.0
> > > >
> > > > But I failed to run the process with following error.
> > > > (MIDHAUL_PCI_ADDR:0000:12:01.0, BACKHAUL_PCI_ADDR:0000:12:01.1)
> > > >
> > > > ---
> > > >
> > > > mlx5_pci: unable to recognize master/representors on the multiple
> > > > IB devices
> > > > common_mlx5: Failed to load driver = mlx5_pci.
> > > > EAL: Requested device 0000:12:01.0 cannot be used
> > > > mlx5_pci: unable to recognize master/representors on the multiple
> > > > IB devices
> > > > common_mlx5: Failed to load driver = mlx5_pci.
> > > > EAL: Requested device 0000:12:01.1 cannot be used
> > > > EAL: Bus (pci) probe failed.
> > > >
> > > > ---
> > > >
> > > > For the success case of pci address 12:01.2, it showed following messages.
> > > >
> > > > ---
> > > >
> > > > EAL: Detected 64 lcore(s)
> > > > EAL: Detected 2 NUMA nodes
> > > > EAL: Multi-process socket /var/run/dpdk/nah2/mp_socket
> > > > EAL: Probing VFIO support...
> > > > EAL: VFIO support initialized
> > > > EAL: PCI device 0000:12:01.2 on NUMA socket 0
> > > > EAL:   probe driver: 15b3:1016 net_mlx5
> > > > net_mlx5: MPLS over GRE/UDP tunnel offloading disabled due to old
> > > > OFED/rdma-core version or firmware configuration
> > > > net_mlx5: port 0 the requested maximum Rx packet size (2056) is
> > > > larger than a single mbuf (2048) and scattered mode has not been
> > > > requested
> > > > USER1: rte_ip_frag_table_create: allocated of 6291584 bytes at
> > > > socket
> > > > 0
> > > >
> > > > ---
> > > >
> > > > BR/Jaeeun